Law passed by Congress mandates the federal arrest of illegal immigrants accused of theft, burglary, assaulting a law enforcement officer, and any crime that causes death or serious bodily injury.

From Viking to Perseverance, scientists have spent decades chasing chemical hints that could point to life beyond Earth.

Spielberg's 'Jurassic Park' remains a beloved classic, but did you know that James Cameron almost directed a much scarier ...

New discoveries and fresh looks at familiar worlds show how far exoplanet science has come — and how much remains unknown.

One that caught attention from many was a type of sea mollusk that washed ashore on South Padre Island in late May.